* Eukaryotic cells have a true nucleus that contains their genetic material (DNA). This nucleus is enclosed within a membrane.

* Prokaryotic cells lack a true nucleus. Their DNA is located in a region called the nucleoid, but it's not enclosed within a membrane.

Other characteristics of eukaryotic cells that humans possess include:

* Membrane-bound organelles: Eukaryotic cells have specialized structures like mitochondria, Golgi apparatus, endoplasmic reticulum, etc., that perform specific functions within the cell.

* Larger size: Eukaryotic cells are typically larger and more complex than prokaryotic cells.

In summary: Humans are made up of eukaryotic cells because their cells have a nucleus that houses their DNA, along with other membrane-bound organelles.